Post-Infectious IBS and Fatigue

Clinical Approach

• The European Crohn's and Colitis Organisation recommends screening for fatigue severity using a visual analogue scale (0-10), with scores ≥4 warranting comprehensive evaluation 1, 2
• The European Crohn's and Colitis Organisation suggests investigating reversible causes such as subclinical disease activity, anemia, iron deficiency, vitamin B12 and D deficiency, thyroid dysfunction, and electrolyte disturbances 1, 3
• The European Crohn's and Colitis Organisation recommends assessing concurrent symptoms including sleep disturbance, psychological distress, and medication side effects 1, 3
• The European Crohn's and Colitis Organisation advises evaluating nutritional status by checking vitamin B6, B12, folate, ferritin, zinc, magnesium, calcium, and vitamin D levels, with dietitian referral as needed 1, 3

Management Considerations

• The European Crohn's and Colitis Organisation suggests addressing underlying inflammation if present, as disease activity correlates with fatigue severity 3
• The European Crohn's and Colitis Organisation recommends correcting nutritional deficiencies and treating anemia when present 1, 3
• The European Crohn's and Colitis Organisation advises considering psychological interventions, such as solution-focused therapy, which showed temporary benefit in IBD-related fatigue 1, 2
• The European Crohn's and Colitis Organisation suggests promoting regular exercise, which has shown positive effects on physical fatigue 1

Important Caveats

• The British Society of Gastroenterology notes that fatigue does not necessarily correlate with disease activity and can persist even when gastrointestinal symptoms are controlled 4, 5